Quick view Compare BHO Hardware 1/4" BSPP Female Socket ST Steel 1/4" BSPP Female Socket ST Steel BHO Hardware ¼” M-BSP to ¼” M-BSP (British standard pipe) are cut from 316 stainless steel giving a better finish and more durable and better sealing thread than you would get from 304 stainless... £20.00 Add to Wishlist Add to Cart